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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 16:15:14 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 16:15:14 -0400
commitdddec01eb8e2b56267b37a6f9f0997a64b4e0b2a (patch)
treeb6d8bfbce9abd105384b9d116499afbe306b9c22 /drivers/md/raid0.c
parent7daf705f362e349983e92037a198b8821db198af (diff)
parent32502b8413a77b54b9e19809404109590c32dfb7 (diff)
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: (37 commits) splice: fix generic_file_splice_read() race with page invalidation ramfs: enable splice write drivers/block/pktcdvd.c: avoid useless memset cdrom: revert commit 22a9189 (cdrom: use kmalloced buffers instead of buffers on stack) scsi: sr avoids useless buffer allocation block: blk_rq_map_kern uses the bounce buffers for stack buffers block: add blk_queue_update_dma_pad DAC960: push down BKL pktcdvd: push BKL down into driver paride: push ioctl down into driver block: use get_unaligned_* helpers block: extend queue_flag bitops block: request_module(): use format string Add bvec_merge_data to handle stacked devices and ->merge_bvec() block: integrity flags can't use bit ops on unsigned short cmdfilter: extend default read filter sg: fix odd style (extra parenthesis) introduced by cmd filter patch block: add bounce support to blk_rq_map_user_iov cfq-iosched: get rid of enable_idle being unused warning allow userspace to modify scsi command filter on per device basis ...
Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 914c04ddec7c..bcbb82594a19 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -241,18 +241,20 @@ static int create_strip_zones (mddev_t *mddev)
241/** 241/**
242 * raid0_mergeable_bvec -- tell bio layer if a two requests can be merged 242 * raid0_mergeable_bvec -- tell bio layer if a two requests can be merged
243 * @q: request queue 243 * @q: request queue
244 * @bio: the buffer head that's been built up so far 244 * @bvm: properties of new bio
245 * @biovec: the request that could be merged to it. 245 * @biovec: the request that could be merged to it.
246 * 246 *
247 * Return amount of bytes we can accept at this offset 247 * Return amount of bytes we can accept at this offset
248 */ 248 */
249static int raid0_mergeable_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *biovec) 249static int raid0_mergeable_bvec(struct request_queue *q,
250 struct bvec_merge_data *bvm,
251 struct bio_vec *biovec)
250{ 252{
251 mddev_t *mddev = q->queuedata; 253 mddev_t *mddev = q->queuedata;
252 sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev); 254 sector_t sector = bvm->bi_sector + get_start_sect(bvm->bi_bdev);
253 int max; 255 int max;
254 unsigned int chunk_sectors = mddev->chunk_size >> 9; 256 unsigned int chunk_sectors = mddev->chunk_size >> 9;
255 unsigned int bio_sectors = bio->bi_size >> 9; 257 unsigned int bio_sectors = bvm->bi_size >> 9;
256 258
257 max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors)) << 9; 259 max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors)) << 9;
258 if (max < 0) max = 0; /* bio_add cannot handle a negative return */ 260 if (max < 0) max = 0; /* bio_add cannot handle a negative return */